EPS Calculation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Basic Earnings/(Loss) per Share:
Net income/(loss) to common stockholders	$ 80,164	$ (231,581)	$ 328,870
Dividends declared on preferred stock	(32,875)	(32,875)	(32,875)
Dividends, dividend equivalents and undistributed earnings allocated to participating securities	0	(627)	(1,044)
Net income/(loss) to common stockholders - basic	$ 47,289	$ (265,083)	$ 294,951
Basic weighted average common shares outstanding (in shares)	102,215	103,153	110,704
Basic Earnings/(Loss) per Share (usd per share)	$ 0.46	$ (2.57)	$ 2.66
Diluted Earnings/(Loss) per Share:
Net income/(loss) to common stockholders - basic	$ 47,289	$ (265,083)	$ 294,951
Dividends, dividend equivalents and undistributed earnings allocated to participating securities	0	0	1,044
Interest expense on Convertible Senior Notes	0	0	15,668
Net income/(loss) to common stockholders - diluted	$ 47,289	$ (265,083)	$ 311,663
Basic weighted average common shares outstanding (in shares)	102,215	103,153	110,704
Unvested and vested restricted stock units (in shares)	1,363	0	757
Effect of assumed conversion of Convertible Senior Notes to common shares (in shares)	0	0	7,230
Diluted weighted average common shares outstanding (in shares)	103,578	103,153	118,691
Diluted Earnings/(Loss) per Share (usd per share)	$ 0.46	$ (2.57)	$ 2.63
RSUs
Diluted Earnings/(Loss) per Share:
Diluted weighted average common shares outstanding (in shares)	3,800
Weighted average grant date fair value (in dollars per share)	$ 11.89